Property, Plant, and Equipment, net (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Summary of Property, Plant, and Equipment

Property, plant and equipment consists of the following (in millions):

	December 31,
	2019		2018
Cable-ships and submersibles	$	246.5	$	251.1
Equipment, furniture and fixtures, and software	214.1		148.0
Building and leasehold improvements	48.9		47.3
Land	36.8		32.8
Construction in progress	14.3		12.9
Plant and transportation equipment	13.5		12.0
	574.1		504.1
Less: Accumulated depreciation	168.3		127.8
Total	$	405.8	$	376.3